C++ class question

I have a class A that has a char* var, operator and methods.
In addition I have a global func(char*s). I would like to run this code from the main function by adding operators to my class, I need help writing them.

Thank you for the fast replay,
I already have a MYclass* to char* conversion operator on the code and it work fine.
I having problems to convert from MYclass* to MYclass** and from MYclass* to char*.
I need them all to work simultaneously.